7 Unlocking Methods: TT lock APP,Fingerprint , Password, Smart Card, Metal Keys, NFC(Phone/Watch),Remote Control TT Lock APP temporary password remote control; connection, easy to set up, no gateway required With Ultra thin panel, symmetry design Patented electromagnetically integrated automatic lock body.The built-in motor automatically opens and closes, reducing the loss and improving the lifespan, the true mortise lock cylinder, safe and reliable Built-in Lithium battery - state-of-the-art technology to bring you 6 Months of battery life on a 2 hours charge